H2O2 in snow, air and open pore space in firn at Summit, Greenland

Details H2O2 in snow, air and open pore space in firn at Summit, Greenland H2O2 in snow, air and open pore space in firn at Summit, Greenland

May 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995georl..22.1261b&link_type=abstract

Geophysical Research Letters (ISSN 0094-8276), vol. 22, no. 10, p. 1261-1264

Physics

16

Air, Condensing, Fog, Greenland, Hydrogen Peroxide, Snow, Water, Annual Variations, Density (Number/Volume), Equilibrium Flow, Experiment Design, Sampling, Vapor Phases

Scientific paper

Measurements of H2O2 in firn gas down to a 1.7-m depth showed a consistent trend, with higher firn-gas concentrations generally associated with higher concentrations in the firn at the same depth. However, firn to firn-gas cncentration ratios still exhibited a seasonal dependence, suggesting that for summer layers equilibrium has not yet been reached. The time to reach equilibrium betwen firn and firn gas is at least weeks. Snowfall and fog deposit several times more H2O2 than the surface snow will retain at equilibrium, supporting the idea that surface snow is a temporary reservoir for H2O2. Thus from an equilibrium standpoint, the snowpack should be a source of atmospheric H2O2 in the summer as well as fall, resulting in higher daytime concentrations than would occur based on just atmospheric photochemical reactions. But firn-gas measurements reported here were generally near or lower than those in the atmosphere, suggesting that degassing is too slow to significantly influence atmospheric H2O2 levels.

Affiliated with

Also associated with

No associations

Rating

H2O2 in snow, air and open pore space in firn at Summit, Greenland does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with H2O2 in snow, air and open pore space in firn at Summit, Greenland, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and H2O2 in snow, air and open pore space in firn at Summit, Greenland will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1060875